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SSC-JE ME || Thermodynamics Quiz 5

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Question 1

Second law efficiency for all reversible processes will be equal to

Question 2

Electricity is which kind of energy?

Question 3

The Helmholtz function F is given by __________.

Question 4

One side of wall is maintained at 400K and other is at 300K. The rate of het transfer through the wall is 1000W and the surroundings temperature is 25°C. Assuming no generation of heat within the wall, the irreversibility (in w) due to heat transfer through the wall is:-

Question 5

Which of the following is not a high grade energy?

Question 6

Find the increase in unavailable energy associated with transfer of 800kJ of heat from a constant temperature system at 600K to another constant temperature at 400K. The ambient temperature is 300K.

Question 7

A heat reservoir is maintained at 627^oC. If the ambient temperature is 27^oC, the availability of heat from the reservoir is limited to ________.

Question 8

Energy is ____ conserved and exergy is ____ conserved.

Question 9

Available energy or availability of the system is function of ____.

Question 10

A source at a temperature of 500 K provides 1000 kJ of heat. The temperature of environment is 27 °C. The maximum useful work (in kJ) that can be obtained from the heat source is ________

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AE & JE Exams Mechanical Engineering

Jul 5AE & JE Exams